A student wants to find out if aspirin helps keep cut flowers fresh. She wants to set up an experiment to test this, but first, she must set up the hypothesis.Which statement is the best hypothesis to test the question she is asking?
Identify the experimental group in this experiment.
When doing final statistics on the study, how many tomato plants can be analyzed for each group?
Which elements should be controlled variables for this experiment? Check all that apply.
Identify the control group in this experiment.
What is the sample size in this study?
In which situation has the independent variable for the experiment been changed?Check all that apply.
Of these four scientific designs, choose the one that has a biased design.
Some carbon dioxide released by human activity dissolves in the oceans and increases ocean acidity. Corals are very sensitive to changes in pH. A scientist wants to study the effect of increasing ocean acidity on coral reef structure and survival.
How many replications of the study are done?
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